build(deps): Bump nginx from dd722b8 to 8763397 (#3444)

Bumps nginx from `dd722b8` to `8763397`.

---
updated-dependencies:
- dependency-name: nginx
  dependency-version: mainline-alpine-slim
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Dockerfile

@@ -20,7 +20,7 @@ RUN npm run build -- --configuration=${BUILD_CONFIGURATION} \
     fi
 
 ### STAGE 2: Run ###
-FROM nginx:mainline-alpine-slim@sha256:dd722b8ee8794f3c273bfaf8b5351b0652a68ccd73c17e5f0d029857a58f25ef
+FROM nginx:mainline-alpine-slim@sha256:8763397d71453fccb4a2613ccfd89aa62e1d731d618b1eaa8e14631539a3a65b
 
 LABEL license='SPDX-License-Identifier: Apache-2.0' \
   copyright='Copyright (c) 2021: Intel'